TreadCompass

GMC C2500 Lug Nut Torque

The 1988–2000 GMC C2500 lug nut torque is 140 ft-lbs (190 N·m).

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GMC C2500 · 1988–2000

Lug nut torque
140ft-lbs190 N·m
Same spec for every year 1988–2000.
  • ✓ Tighten in a star pattern, in two passes, with a torque wrench (not an impact gun)
  • ✓ Re-check the torque after the first 50–100 miles
  • ✓ Confirm against your owner’s manual; aftermarket wheels can differ

Source: TreadCompass vehicle fitment database. Page updated November 2026. Specs can vary with aftermarket wheels and lug hardware, so always confirm with your owner’s manual.

Factory tire sizes for the GMC C2500

Compare prices across retailers for your size.

245/75R161988–2000 · Compare prices →225/75R161988–1999 · Compare prices →

Other GMC models

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GMC C2500 lug nut torque FAQ

What is the lug nut torque for a GMC C2500?

The 1988–2000 GMC C2500 lug nut torque is 140 ft-lbs (190 N·m). Tighten in a star pattern with a torque wrench, then re-check after the first 50–100 miles.

Do all C2500 trims use the same lug nut torque?

Yes. Every C2500 trim in our database uses the same lug nut torque for a given model year.

Has the GMC C2500 lug nut torque changed over the years?

No. It has been 140 ft-lbs (190 N·m) for every model year we have, 1988–2000.

What size tires come on the GMC C2500?

Factory tire sizes include 245/75R16 (1988–2000) and 225/75R16 (1988–1999). Check the sidewall of your current tires to confirm yours, then compare prices for that size above.

New to torquing wheels? See how to torque lug nuts and common questions.